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  • Why is phosphoric acid preferred over sulphuric acid when reacting with hydrated barium peroxide <img alt="\left(\mathrm{BaO}_2 .8 \mathrm{H}_2 \mathrm{O}\right)" src="https://entrancecorner.o

Why is phosphoric acid preferred over sulphuric acid when reacting with hydrated barium peroxide \left(\mathrm{BaO}_2 .8 \mathrm{H}_2 \mathrm{O}\right) ?

Option: 1

Phosphoric acid forms a protective coating with barium peroxide.

 


Option: 2

Sulphuric acid decomposes hydrogen peroxide, while phosphoric acid acts as a preservative.


Option: 3

Sulphuric acid prevents the formation of soluble impurities.


Option: 4

Phosphoric acid enhances the reactivity of barium peroxide.


Answers (1)

best_answer

When using sulphuric acid, soluble impurities like barium persulphate can form, and these impurities tend to decompose hydrogen peroxide. In contrast, phosphoric acid acts as a preservative or negative catalyst for hydrogen peroxide, preventing its decomposition.

 

Posted by

Ritika Jonwal

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